EESA06H3 Chapter Notes -James Hutton, Uniformitarianism, Geologic Time Scale
Document Summary
Relative time unraveling the sequence in which geologic events occurred. For example finding out that the glacial sediments found near the ground surface are younger than the layered sedimentary rock they cover. Radioactive isotope dating determining how many years ago rocks formed. For example, finding out that rocks forming the north america craton range in age between 4 billion years and 1 billion years old. james hutton & charles lyell recognized that landscapes had evolved over many millions of years by the processes that we will see operating today www. notesolution. com. Uniformitarianism (actualism) the same processes and natural laws that operated in the past are those we can actually observe or infer from observation as operating at present. Numerical age (absolute age) dating based on radioactivity allows us to determine this, which is age given in years or some other unit of time (does not have to be exact age ex.
